Author Posting. © American Geophysical Union, 2005.  This article is posted here by permission of American Geophysical Union for personal use, not for redistribution.  The definitive version was published in Paleoceanography 20 (2005): PA1019, doi:10.1029/2005PA001134

Becquey

Berger

Bolton

Brassell

Brathauer

Crowley

de Leeuw

de Menocal

Dupont

Eisma

Enno Schefuß

Gildor

Howard

Hsü

Imbrie

J. H. Fred Jansen

Jaap S. Sinninghe Damsté

Jahn

Jansen

Katz

Knorr

Kravtsov

Kroopnick

Levitus

Lutjeharms

Maasch

Manabe

McIntyre

Meeuwis

Mudelsee

Müller

Park

Peterson

Philander

Pisias

Prahl

Prell

Raymo

Ruddiman

Rühlemann

Schmieder

Schneider

Schulz

Shackleton

Shannon

Sinninghe Damsté

Stephens

Tziperman

van Bennekom

Wefer

English

Author Posting. © American Geophysical Union, 2004.  This article is posted here by permission of American Geophysical Union for personal use, not for redistribution.  The definitive version was published in Paleoceanography 19 (2004): PA4029, doi:10.1029/2003PA000892.We compare a new mid-Pleistocene sea surface temperature (SST) record from the eastern tropical Atlantic to changes in continental ice volume, orbital insolation, Atlantic deepwater ventilation, and Southern Ocean front positions to resolve forcing mechanisms of tropical Atlantic SST during the mid-Pleistocene transition (MPT). At the onset of the MPT, a strong tropical cooling occurred. The change from a obliquity- to a eccentricity-dominated cyclicity in the tropical SST took place at about 650 kyr BP. In orbital cycles, tropical SST changes significantly preceded continental ice-volume changes but were in phase with movements of Southern Ocean fronts. After the onset of large-amplitude 100-kyr variations, additional late glacial warming in the eastern tropical Atlantic was caused by enhanced return flow of warm waters from the western Atlantic driven by strong trade winds. Pronounced 80-kyr variations in tropical SST occurred during the MPT, in phase with and likely directly forced by transitional continental ice-volume variations. During the MPT, a prominent anomalous long-term tropical warming occurred, likely generated by extremely northward displaced Southern Ocean fronts. While the overall pattern of global climate variability during the MPT was determined by changes in mean state and frequency of continental ice volume variations, tropical Atlantic SST variations were primarily driven by early changes in Subantarctic sea-ice extent and coupled Southern Ocean frontal positions.The Dutch scientific funding
organization (NWO) is thanked for financial support (project 75019617)

Schefuß, Enno

Sinninghe Damste, Jaap S.

Jansen, J. H. Fred

Woods Hole Open Access Server

Forcing of tropical Atlantic sea surface temperatures during the mid-Pleistocene transition

Correction to ‘‘Forcing of tropical Atlantic sea surface temperaturesduring the mid-Pleistocene transition’’E. Schefuß, J. S. Sinninghe Damste´, and J. H. Fred JansenReceived 14 January 2005; published 30 March 2005.Citation: Schefuß, E., J. S. Sinninghe Damste´, and J. H. Fred Jansen (2005), Correction to ‘‘Forcing of tropical Atlantic sea surfacetemperatures during the mid-Pleistocene transition,’’ Paleoceanography, 20, PA1019, doi:10.1029/2005PA001134.[1] In the paper ‘‘Forcing of tropical Atlantic sea surface temperatures during the mid-Pleistocene transition’’ byE. Schefuß, J. S. Sinninghe Damste´, and J. H. Fred Jansen (Paleoceanography, 19, PA4029, doi:10.1029/2003PA000892,2004), Tables 1–3 were incorrect. The corrected tables appear below.Table 1. Phase Angles in the Obliquity (41 kyr) CycleaTime Series CoherencyNonzeroCoherency (80%)PhaseAngle, deg.Time Lag,kyrMid-Pleistocene Versus ETPODP 1077 SST 0.99 0.96 48 ± 6 5.5 ± 0.7ODP 1090 SSST 0.99 0.96 52 ± 4 5.9 ± 0.5ODP 677 -d18Obent. 0.99 0.96 78 ± 5 8.9 ± 0.6DSDP 607 d13Cwuell. 0.97 0.96 113 ± 9 12.9 ± 1.0Versus d18O677ODP 1077 SST 0.99 0.96 29 ± 8 3.2 ± 1.0Late Quaternary Versus Minimum IceGeoB 1016 SST Angola margin 0.76 0.64 28 ± 20 3.2 ± 2.3E45-29/E49-18 SST South Indian fronts 0.86 0.65 27 ± 15 3.1 ± 1.7PS2082-1 SST South Atlantic fronts 0.92 0.73 18 ± 12 2.1 ± 1.4PS2489-2 SSST South Atlantic fronts 0.82 0.80 13 ± 15 1.5 ± 1.7aETP describes summed orbital variance following the convention by Imbrie et al. [1989] using the data of Berger and Loutre [1991]. ODP 1090 SSSTdata are from Becquey and Gersonde [2002], data of ODP 677 d18O are from Shackleton et al. [1990], data of DSDP 607 d13C are from Ruddiman et al.[1989] with the stratigraphy of Raymo et al. [1997]. Results for the late Quaternary are taken from the literature. Data of GeoB 1016 (11460S, 11410E) arefrom Schneider et al. [1995], data for E45-29 (44530S, 106310E) and E49-18 (46030S, 90100E) are from Howard and Prell [1992], PS2082-1 (43130S,11440E) data are from Brathauer and Abelmann [1999], and PS2489-2 (42520S, 8580E) data are from Becquey and Gersonde [2003]. All late Quaternaryrecords are crossed with the inverse SPECMAP record [Imbrie et al., 1984], except for PS2489-2 SSST, which is crossed with benthic foraminiferal d18O ofthat core [Becquey and Gersonde, 2003]. A negative phase lag represents a lead.PALEOCEANOGRAPHY, VOL. 20, PA1019, doi:10.1029/2005PA001134, 2005Copyright 2005 by the American Geophysical Union.0883-8305/05/2005PA001134$12.00PA1019 1 of 2Table 2. Phase Angles in the Eccentricity (100 kyr) Cycle From 900 to 450 kyr BPaTime Series CoherencyNonzeroCoherency (80%)Phase Angle,deg.Time Lag,kyrMid-Pleistocene Versus ETPODP 1090 SSST 0.99 0.96 10 ± 3 2.8 ± 0.8ODP 1077 SST 0.96 0.96 8 ± 10 2.2 ± 2.8DSDP 607 d13Cwuell. 0.93 0.96 5 ± 14 1.4 ± 3.9ODP 677 -d18Obent. 0.98 0.96 24 ± 8 6.7 ± 2.2Versus d18O677ODP 1077 SST 0.91 0.96 31 ± 16 8.6 ± 4.4Late Quaternary Versus Minimum IceGeoB 1016 SST Angola margin 0.92 0.64 14 ± 15 3.9 ± 4.2E45-29/E49-18 SST South Indian fronts 0.81 0.65 18 ± 18 5.0 ± 5.0PS2082-1 SST South Atlantic fronts 0.97 0.73 18 ± 6 5.0 ± 1.7PS2489-2 SSST South Atlantic fronts 0.93 0.80 23 ± 8 6.4 ± 2.2aSee Table 1 for notes.Table 3. Phase Angles in the 80-kyr CycleaTime Series CoherencyNonzeroCoherency (80%)Phase Angle,deg. Lag, kyrVersus ODP 1077 SSTODP 1090 SSST 0.71 0.96 25 ± 32 5.6 ± 7.1ODP 677 -d18Obent. 0.83 0.96 1 ± 23 0.2 ± 5.1DSDP 607 d13Cwuell. 0.92 0.96 10 ± 15 2.2 ± 3.3aSee Table 1 for notes.PA1019 SCHEFUß ET AL: CORRECTION PA10192 of 2

Correction to “Forcing of tropical Atlantic sea surface temperatures during the mid-Pleistocene transition”

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E. Schefuß

J. S. Sinninghe Damsté

https://darchive.mblwhoilibrary.org/bitstream/1912/3421/1/2003PA000892.pdf

Correction to “Forcing of tropical Atlantic sea surface temperatures during the mid-Pleistocene transition”

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